​Browser games have loads of potential for creating fun memories. Hosting a game in the browser limits game developers in many ways but, this limitation is what forces game developers to create fun and unique mechanics for the player. This fun is only multiplied when you play with your friends. 

​Skulls in Halo are gameplay modifiers that were first introduced as Easter Eggs in Halo 2 to provide an extra layer of depth to the game, and to provide more of a challenge for players by altering the way the game plays. To activate a Skull, the player must first find it, which is usually a challenge in itself, as the Skulls are scattered throughout the campaign levels, usually well off the beaten path, with some requiring complex exploits, codes, platforming, glitches or even surviving a gauntlet to actually reach them.